diff options
author | Keith Whitwell <keith@tungstengraphics.com> | 2008-04-17 14:20:00 +0100 |
---|---|---|
committer | Keith Whitwell <keith@tungstengraphics.com> | 2008-04-17 14:23:13 +0100 |
commit | 280bcff1fa200b790d8712946a4ffbaa47a67433 (patch) | |
tree | e9d8ebf9e24e8bee0687a3ca283dcff10787008f /src/gallium/auxiliary/draw/draw_vs_llvm.c | |
parent | 938ec19210c5b4e19dcb2b606c9ade415f2c1f84 (diff) |
draw: add vertex shader run_linear function
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_vs_llvm.c')
-rw-r--r-- | src/gallium/auxiliary/draw/draw_vs_llvm.c | 66 |
1 files changed, 64 insertions, 2 deletions
diff --git a/src/gallium/auxiliary/draw/draw_vs_llvm.c b/src/gallium/auxiliary/draw/draw_vs_llvm.c index 73076d2467..d0baca715e 100644 --- a/src/gallium/auxiliary/draw/draw_vs_llvm.c +++ b/src/gallium/auxiliary/draw/draw_vs_llvm.c @@ -88,8 +88,7 @@ vs_llvm_run( struct draw_vertex_shader *base, assert(count <= 4); - assert(draw->vertex_shader->state->output_semantic_name[0] - == TGSI_SEMANTIC_POSITION); + assert(base->state->output_semantic_name[0] == TGSI_SEMANTIC_POSITION); /* Consts does not require 16 byte alignment. */ machine->Consts = (float (*)[4]) draw->user.constants; @@ -169,6 +168,65 @@ vs_llvm_run( struct draw_vertex_shader *base, return clipped != 0; } + + + +static void +vs_llvm_run_linear( struct draw_vertex_shader *base, + const float (*input)[4], + float (*output)[4], + const float (*constants)[4], + unsigned count, + unsigned input_stride, + unsigned output_stride ) +{ + struct draw_llvm_vertex_shader *shader = + (struct draw_llvm_vertex_shader *)base; + + struct tgsi_exec_machine *machine = &draw->machine; + unsigned int j; + + + for (i = 0; i < count; i += MAX_TGSI_VERTICES) { + unsigned int max_vertices = MIN2(MAX_TGSI_VERTICES, count - i); + + /* Swizzle inputs. + */ + for (j = 0; j < max_vertices; j++) { + for (slot = 0; slot < draw->num_vs_inputs; slot++) { + machine->Inputs[slot].xyzw[0].f[j] = input[slot][0]; + machine->Inputs[slot].xyzw[1].f[j] = input[slot][1]; + machine->Inputs[slot].xyzw[2].f[j] = input[slot][2]; + machine->Inputs[slot].xyzw[3].f[j] = input[slot][3]; + } + } + + /* run shader */ + gallivm_cpu_vs_exec(shader->llvm_prog, + machine->Inputs, + machine->Outputs, + (float (*)[4]) constants, + machine->Temps); + + + /* Unswizzle all output results + */ + for (slot = 1; slot < draw->num_vs_outputs; slot++) { + output[slot][0] = machine->Outputs[slot].xyzw[0].f[j]; + output[slot][1] = machine->Outputs[slot].xyzw[1].f[j]; + output[slot][2] = machine->Outputs[slot].xyzw[2].f[j]; + output[slot][3] = machine->Outputs[slot].xyzw[3].f[j]; + } + + /* Advance input, output pointers: + */ + input = (const float (*)[4])((const char *)input + input_stride); + output = (float (*)[4])((char *)output + output_stride); + } +} + + + static void vs_llvm_delete( struct draw_vertex_shader *base ) { @@ -198,8 +256,12 @@ draw_create_vs_llvm(struct draw_context *draw, /* we make a private copy of the tokens */ vs->base.state.tokens = mem_dup(templ->tokens, nt * sizeof(templ->tokens[0])); + + tgsi_scan_shader(shader->tokens, &vs->base.info); + vs->base.prepare = vs_llvm_prepare; vs->base.run = vs_llvm_run; + vs->base.run_linear = vs_llvm_run_linear; vs->base.delete = vs_llvm_delete; { |